package cc.vv.baselibrary.view;

import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.LinearGradient;
import android.graphics.Paint;
import android.graphics.RadialGradient;
import android.graphics.RectF;
import android.graphics.Shader;
import android.graphics.Typeface;
import android.util.AttributeSet;
import android.view.View;

import cc.vv.baselibrary.R;

/**
 * 首页圆环自定义控件
 * * @author Chen.qi by 2018/02/28
 */
public class BaseRoundProgressBar extends View {
    /**
     * 画笔对象的引用
     */
    private Paint paint;

    private Paint paintInner;

    /**
     * 圆环的颜色
     */
    private int roundColor;

    /**
     * 圆环进度的颜色
     */
    private int roundProgressColor;

    /**
     * 中间进度百分比的字符串的颜色
     */
    private int textColor;

    /**
     * 中间进度百分比的字符串的字体
     */
    private float textSize;

    /**
     * 圆环的宽度
     */
    private float roundWidth;

    private float roundWidthInner;

    /**
     * 最大进度
     */
    private int max;

    /**
     * 当前进度
     */
    private int progress;
    /**
     * 是否显示中间的进度
     */
    private boolean textIsDisplayable;

    /**
     * 进度的风格，实心或者空心
     */
    private int style;

    public static final int STROKE = 0;
    public static final int FILL = 1;

    public BaseRoundProgressBar(Context context) {
        this(context, null);
    }

    public BaseRoundProgressBar(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public BaseRoundProgressBar(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);

        paint = new Paint();

        paintInner = new Paint();

        TypedArray mTypedArray = context.obtainStyledAttributes(attrs,
                R.styleable.BaseCircleImageView);

        // 获取自定义属性和默认值
        roundColor = mTypedArray.getColor(
                R.styleable.BaseCircleImageView_roundColor,
                Color.parseColor("#1A000000"));
        roundProgressColor = mTypedArray.getColor(
                R.styleable.BaseCircleImageView_roundProgressColor,
                Color.parseColor("#68DEA2"));
        textColor = mTypedArray.getColor(R.styleable.BaseCircleImageView_civ_textColor,
                Color.parseColor("#68DEA2"));
        textSize = mTypedArray.getDimension(
                R.styleable.BaseCircleImageView_civ_textSize, 100);
        roundWidth = mTypedArray.getDimension(
                R.styleable.BaseCircleImageView_roundWidth, 15);

        roundWidthInner = mTypedArray.getDimension(
                R.styleable.BaseCircleImageView_roundWidth, 3);

        max = mTypedArray.getInteger(R.styleable.BaseCircleImageView_max, 100);
        textIsDisplayable = mTypedArray.getBoolean(
                R.styleable.BaseCircleImageView_textIsDisplayable, false);
        style = mTypedArray.getInt(R.styleable.BaseCircleImageView_style, 0);

        mTypedArray.recycle();
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        // 获取圆心的x坐标
        int centre = getWidth() / 2;
        // 圆环的半径
        int radius = (int) (centre - roundWidth / 2);
        // 设置圆环的颜色
        paint.setColor(roundColor);
        // 设置空心
        paint.setStyle(Paint.Style.STROKE);
        // 设置圆环的宽度
        paint.setStrokeWidth(roundWidth);
        // 消除锯齿
        paint.setAntiAlias(true);

        // 设置圆环的颜色
        paintInner.setColor(roundColor);
        // 设置空心
        paintInner.setStyle(Paint.Style.STROKE);
        // 设置圆环的宽度
        paintInner.setStrokeWidth(roundWidthInner);
        // 消除锯齿
        paintInner.setAntiAlias(true);

        // 画出圆环
        canvas.drawCircle(centre, centre, radius, paint);

        /*
         * 画进度百分比
         */
        paint.setStrokeWidth(0);
        paint.setColor(textColor);
        paint.setTextSize(textSize);
        // 设置字体
        paint.setTypeface(Typeface.DEFAULT_BOLD);
        // 中间的进度百分比，先转换成float在进行除法运算，不然都为0
        int percent = (int) (((float) progress / (float) max) * 100);
        // 测量字体宽度，我们需要根据字体的宽度设置在圆环中间
        float textWidth = paint.measureText(percent + "");

        if (textIsDisplayable && style == STROKE) {
            // 画出进度百分比
            canvas.drawText(percent + "", centre - textWidth / 2, centre
                    + textSize / 2.5f, paint);
        }
        // 设置进度是实心还是空心
        // 设置圆环的宽度
        paint.setStrokeWidth(roundWidth);
        // 设置进度的颜色
        paint.setColor(roundProgressColor);
        // 用于定义的圆弧的形状和大小的界限
        RectF oval = new RectF(centre - radius, centre - radius, centre
                + radius, centre + radius);

        switch (style) {
            case STROKE:
                paint.setStyle(Paint.Style.STROKE);
                // 根据进度画圆弧
                canvas.drawArc(oval, 90, 360 * progress / max, false, paint);
                break;

            case FILL:
                paint.setStyle(Paint.Style.FILL_AND_STROKE);
                // 根据进度画圆弧
                if (progress != 0) {
                    canvas.drawArc(oval, 90, 360 * progress / max, true, paint);
                }
                break;
            default:
                break;
        }

    }

    public synchronized int getMax() {
        return max;
    }

    /**
     * 设置进度的最大值
     *
     * @param max
     */
    public synchronized void setMax(int max) {
        if (max < 0) {
            throw new IllegalArgumentException("max not less than 0");
        }
        this.max = max;
    }

    /**
     * 获取进度.需要同步
     *
     * @return
     */
    public synchronized int getProgress() {
        return progress;
    }

    /**
     * 设置进度，此为线程安全控件，由于考虑多线的问题，需要同步 刷新界面调用postInvalidate()能在非UI线程刷新
     *
     * @param progress
     */
    public synchronized void setProgress(int progress) {
        if (progress < 0) {
            throw new IllegalArgumentException("progress not less than 0");
        }
        if (progress > max) {
            progress = max;
        }
        if (progress <= max) {
            this.progress = progress;
            postInvalidate();
        }

    }

    public int getCricleColor() {
        return roundColor;
    }

    public void setCricleColor(int cricleColor) {
        this.roundColor = cricleColor;
    }

    public int getCricleProgressColor() {
        return roundProgressColor;
    }

    public void setCricleProgressColor(int cricleProgressColor) {
        this.roundProgressColor = cricleProgressColor;
    }

    public int getTextColor() {
        return textColor;
    }

    public void setTextColor(int textColor) {
        this.textColor = textColor;
    }

    public float getTextSize() {
        return textSize;
    }

    public void setTextSize(float textSize) {
        this.textSize = textSize;
    }

    public float getRoundWidth() {
        return roundWidth;
    }

    public void setRoundWidth(float roundWidth) {
        this.roundWidth = roundWidth;
    }

}
